linux-kernel - Re: [PATCH v3 1/7] bus: mhi: core: Allow receiving a STOP channel command response

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Date:   Wed, 2 Dec 2020 16:15:42 -0800
From:   Hemant Kumar <hemantk@...eaurora.org>
To:     Bhaumik Bhatt <bbhatt@...eaurora.org>,
        manivannan.sadhasivam@...aro.org
Cc:     linux-arm-msm@...r.kernel.org, loic.poulain@...aro.org,
        jhugo@...eaurora.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 1/7] bus: mhi: core: Allow receiving a STOP channel
 command response

Hi Bhaumik,

On 12/2/20 3:40 PM, Bhaumik Bhatt wrote:
> Add support to receive the response to a STOP channel command to the
How about saying "Add support to send the STOP channel command ?
> MHI bus. If a client would like to STOP a channel instead of issuing
> a RESET to it, this would provide support for it.
> 
> Signed-off-by: Bhaumik Bhatt <bbhatt@...eaurora.org>
> ---
>   drivers/bus/mhi/core/main.c | 5 +++++
>   1 file changed, 5 insertions(+)
> 
> diff --git a/drivers/bus/mhi/core/main.c b/drivers/bus/mhi/core/main.c
> index 702c31b..a7bb8a7 100644
> --- a/drivers/bus/mhi/core/main.c
> +++ b/drivers/bus/mhi/core/main.c
> @@ -1193,6 +1193,11 @@ int mhi_send_cmd(struct mhi_controller *mhi_cntrl,
>   		cmd_tre->dword[0] = MHI_TRE_CMD_RESET_DWORD0;
>   		cmd_tre->dword[1] = MHI_TRE_CMD_RESET_DWORD1(chan);
>   		break;
> +	case MHI_CMD_STOP_CHAN:
> +		cmd_tre->ptr = MHI_TRE_CMD_STOP_PTR;
> +		cmd_tre->dword[0] = MHI_TRE_CMD_STOP_DWORD0;
> +		cmd_tre->dword[1] = MHI_TRE_CMD_STOP_DWORD1(chan);
> +		break;
>   	case MHI_CMD_START_CHAN:
>   		cmd_tre->ptr = MHI_TRE_CMD_START_PTR;
>   		cmd_tre->dword[0] = MHI_TRE_CMD_START_DWORD0;
> 

Thanks,
Hemant
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